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MERLIN DP

AMERICAN MEGATRENDS, INC.

MERLIN DP

Processor

Pentium Pro

Processor Speed

150/166/180/200MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

512MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB (located on Pentium Pro CPU)

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), VRM connectors (2), USB connectors (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Floppy drive interface

J1

USB connector 2

J14

Parallel port

J2

Green PC connector

J29

Chassis fan power

J3

Turbo LED

J30

Chassis fan power

J5

Reset switch

J32

PS/2 mouse interface

J7

IDE interface LED

J34

Serial port 1

J8

Speaker

J35

Serial port 2

J9

Power LED & keylock

J36

IDE interface 2

J10

32-bit PCI slots

PC1 - PC4

IDE interface 1

J12

VRM connector

VRM

USB connector 1

J13

VRM connector

VRM

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J20

Unidentified

 

PS/2 mouse IRQ12 enabled

J23

Pins 1 & 2 closed

 

PS/2 mouse IRQ12 disabled

J23

Pins 2 & 3 closed

Factory configured - do not alter

J31

Unidentified

Factory configured - do not alter

J33

Unidentified

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 2M x 36

(2) 4M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 2M x 36

(2) 8M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 16M x 36

None

128MB

(2) 8M x 36

(2) 8M x 36

136MB

(2) 16M x 36

(2) 1M x 36

144MB

(2) 16M x 36

(2) 2M x 36

160MB

(2) 16M x 36

(2) 4M x 36

192MB

(2) 16M x 36

(2) 8M x 36

256MB

(2) 32M x 36

None

256MB

(2) 16M x 36

(2) 16M x 36

DRAM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

264MB

(2) 32M x 36

(2) 1M x 36

272MB

(2) 32M x 36

(2) 2M x 36

288MB

(2) 32M x 36

(2) 4M x 36

320MB

(2) 32M x 36

(2) 8M x 36

384MB

(2) 32M x 36

(2) 16M x 36

512MB

(2) 32M x 36

(2) 32M x 36

Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. Banks are interchangeable.

CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium Pro CPU.

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

J16

J17

J22

J26

150MHz

60MHz

2.5x

Open

Closed

1 & 2

3 & 4, 5 & 6, 7 & 8

166MHz

66MHz

2.5x

Closed

Open

1 & 2

3 & 4, 5 & 6, 7 & 8

180MHz

60MHz

3x

Open

Closed

1 & 2

1 & 2, 5 & 6, 7 & 8

200MHz

66MHz

3x

Closed

Open

1 & 2

1 & 2, 5 & 6, 7 & 8

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

J4

J6

 

None

Open

Open

 

2.1v

Pins 7 & 8 closed

Pins 7 & 8 closed

 

2.2v

Pins 5 & 6 closed

Pins 5 & 6 closed

 

2.3v

Pins 5 & 6, 7 & 8 closed

Pins 5 & 6, 7 & 8 closed

 

2.4v

Pins 3 & 4 closed

Pins 3 & 4 closed

 

2.5v

Pins 3 & 4, 5 & 6 closed

Pins 3 & 4, 5 & 6 closed

 

2.6v

Pins 3 & 4, 5 & 6 closed

Pins 3 & 4, 5 & 6 closed

 

2.7v

Pins 3 & 4, 5 & 6, 7 & 8 closed

Pins 3 & 4, 5 & 6, 7 & 8 closed

 

2.8v

Pins 1 & 2 closed

Pins 1 & 2 closed

 

2.9v

Pins 1 & 2, 7 & 8 closed

Pins 1 & 2, 7 & 8 closed

 

3.0v

Pins 1 & 2, 5 & 6 closed

Pins 1 & 2, 5 & 6 closed

 

3.1v

Pins 1 & 2, 5 & 6, 7 & 8 closed

Pins 1 & 2, 5 & 6, 7 & 8 closed

 

3.2v

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2, 3 & 4 closed

3.3v

Pins 1 & 2, 3 & 4, 7 & 8 closed

Pins 1 & 2, 3 & 4, 7 & 8 closed

 

3.4v

Pins 1 & 2, 3 & 4, 5 & 6 closed

Pins 1 & 2, 3 & 4, 5 & 6 closed

 

3.5v

Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed

Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed